Boonton 4500B Peak Power Meter - Manual (Page 286)

Boonton 4500B RF Peak Power Analyzer
Remote Operation 5-86
5.5.17 TRACe Data Array Commands
The TRACe group of commands is used to control the output of acquired measurement arrays, which appear as a display
trace when the power analyzer is in Graph mode. The TRACe commands allow outputting a channel‘s entire trace (501
measurement points) as one large array, or selecting and returning the array in smaller portions. These commands are useful
for capturing the displayed waveform and importing it into a database on the host.
TRACe:AVERage:DATA[:NEXT]?
Description: Return a comma-delimited array of power or voltage pixel average values corresponding to all or a
portion of the graph mode display trace for the selected channel. Note that graph mode does not
have to be active to read the trace, and the pixel values are returned without regard to display
vertical scale and center settings. The array will consist of COUNT trace pixel values, beginning
at pixel number INDEX, up to the last pixel of the trace (index = 500), and will be returned in
channel units. The selected channel must be ―ON‖ to return measurement data.
Syntax: TRACe[1|2|3|4|5|6|7]:AVERage:DATA?
Returns: P(index), P(index+1), P(index+2).... P(index+count) or
V(index), V(index+1), V(index+2).... V(index+count)
Valid Modes: All
TRACe:AVERage:DATA:BINary?
Description: Returns IEEE488.2 binary block data values corresponding to all or a portion of the graph mode
display trace for the selected channel. Note that graph mode does not have to be active to read the
trace, and the values are returned without regard to display vertical scale and center settings. The
data will be returned in channel units. The selected channel must be ―ON‖ to return measurement
data. The array will consist of COUNT binary data values. The format is as follows:
# is the first byte, the second byte is the number of characters indicating the size of the array to be
read in bytes followed by that many bytes of floating point values.
Syntax: TRACe[1|2|3|4|5|6|7]:AVERage:DATA:BINary?
Returns: IEEE format 32 bit floating point values
Valid Modes: All
TRACe:COUNt
Description: Set or return the number of trace points, which will be returned each time the TRACe:DATA?
query is issued. At the completion of each read, INDEX is automatically incremented by
COUNT. If COUNT is set to a number greater than the number of points remaining in the trace,
the array will be truncated. Setting COUNT to 501 (and INDEX to zero each time) will return the
entire trace array.
Syntax: TRACe[1|2|3|4|5|6|7]:COUNt
Argument: = 1 to 501
Valid Modes: All